Finding the Fourth Proportional to 2,158,339.62, 2,978,296.38 and 1,191,407.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,339.62 : 2,978,296.38 = 1,191,407.52 : x
2. Step 2: Convert to fraction form
   2,158,339.62/2,978,296.38 = 1,191,407.52/x
3. Step 3: Cross multiply
   2,158,339.62x = 2,978,296.38 × 1,191,407.52
4. Step 4: Simplify right side
   2,158,339.62x = 3,548,364,703,920.78
5. Step 5: Solve for x
   x = 3,548,364,703,920.78/2,158,339.62
6. Step 6: Final answer
   x = 1,644,025.19